US20090047810A1 - Clamping connector for a conductor rail - Google Patents
Clamping connector for a conductor rail Download PDFInfo
- Publication number
- US20090047810A1 US20090047810A1 US12/192,641 US19264108A US2009047810A1 US 20090047810 A1 US20090047810 A1 US 20090047810A1 US 19264108 A US19264108 A US 19264108A US 2009047810 A1 US2009047810 A1 US 2009047810A1
- Authority
- US
- United States
- Prior art keywords
- conductor
- wings
- bands
- conductor rail
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 165
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/16—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by bending
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
- H01R25/145—Details, e.g. end pieces or joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
- H01R25/162—Electrical connections between or with rails or bus-bars
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/14—Bale and package ties, hose clamps
- Y10T24/1457—Metal bands
- Y10T24/1482—Ratchet and tool tightened band clamp
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
Definitions
- the invention pertains to a conductor rail, particularly an enclosed conductor rail, and to a method for connecting conductor bands of adjacent segments of a conductor rail, as well as to the utilization of a clamping connector for connecting conductor bands of adjacent segments of a conductor rail.
- a conductor rail is known from the company brochure “Kastenschleif effeten Program 0842” of the firm Wampfler AG.
- the conductor rail segments of the enclosed conductor rail described in this brochure can be connected to one another in different ways.
- One option for producing this connection consists of bending the ends of the conductor bands extending in the housing of the enclosed conductor rail outward by 90°.
- the outwardly bent ends of the conductor bands of adjacent conductor rail segments can then be electrically and mechanically connected to one another by means of an angular clamping connector that can be clamped or screwed over the joined ends of the conductor bands of adjacent conductor rail segments that protrude transversely from the housing.
- the invention aims to improve a conductor rail of the initially cited type such that a simple connection between conductor rail segments can be manually produced with the fewest components possible, and such that a high system reliability is preserved.
- the invention aims to simplify the transport of yet uninstalled conductor rail segments.
- the contact point at which the conductor bands of adjacent conductor rail segments are connected to one another should be largely vibration-proof and have an adequate electric conductivity.
- FIG. 1 a shows an oblique representation of the connecting point between two conductor rail segments with conductor band ends that are bent outward by 180°;
- FIG. 1 b shows the region of the contact point between the conductor rail segments according to FIG. 1 a during an intermediate step of the inventive method
- FIG. 1 c shows the contact point between the conductor rail segments according to FIG. 1 a during another intermediate step of the inventive method
- FIG. 1 d shows an oblique representation of the contact point between conductor rail segments that are electrically and mechanically connected in accordance with the invention by means of clamping connectors;
- FIG. 2 a shows a front view of a clamping connector for connecting conductor rail segments of a conductor rail (top), and a side view of a contact point between two adjacent conductor rail segments with conductor bands that are bent outward by 180° (bottom);
- FIG. 2 b shows a schematic representation of the connection between the conductor rail segments according to FIG. 2 a during an intermediate step of the inventive method
- FIG. 2 c shows a schematic representation of the contact point between the conductor rail segments according to FIG. 2 a (bottom) that are connected to one another by means of the clamping connector according to FIG. 2 a (top).
- the enclosed conductor rail illustrated in the form of an oblique representation in FIG. 1 consists of several conductor rail segments 1 a , 1 b that are electrically and mechanically connected to one another at their ends.
- the enclosed conductor rail comprises a box-shaped housing 2 of an electrically insulating material, usually plastic, and one or more conductor bands 4 , 4 ′, 6 , 6 ′ of an electrically conductive material such as, for example, copper band that extend in the housing.
- the conductor bands extending in the conductor rail segment 1 a are identified by the reference numerals 4 and 4 ′ and the conductor bands extending in the conductor rail segment 1 b are identified by the reference numerals 6 and 6 ′.
- the ends of the conductor bands 4 , 4 ′ and 6 , 6 ′ are bent out of the housing 2 by 180°.
- the outwardly bent ends of the conductor bands 4 , 4 ′ and 6 , 6 ′ are tapered toward their end, in particular being tapered rearward in the embodiment shown.
- the faces of the upper conductor bands 4 , 6 and the lower conductor bands 4 ′, 6 ′ of the two conductor rail segments 1 a and 1 b abut one another.
- the bend in the conductor bands consequently forms a contact surface 5 , at which the respectively corresponding conductor bands 4 , 6 and 4 ′, 6 ′ are in electrical contact with one another and thus ensure the current flow from the conductor rail segment 1 a to the adjacent conductor rail segment 1 b.
- FIG. 2 a shows a front view of a clamping connector 3 that is made of an electrically conductive material ( FIG. 2 a , top).
- the illustration below this front view shows the contact point between the conductor bands 4 and 6 of the conductor rail segments 1 a and 1 b in the form of a side view ( FIG. 2 a , bottom).
- the clamping connector 3 shown in the top illustration of FIG. 2 a consists of two wings 7 , 8 and a deformation area 9 arranged between the two wings.
- the deformation area 9 may consist of a material that is easier to deform or be of the same material as the two wings 7 , 8 , in which case the material is realized thinner.
- the wings 7 , 8 and the deformation area 9 may also consist of the same material and have the same thickness.
- the deformation area 9 is delimited from the wings 7 , 8 by grooves or bending lines.
- FIG. 1 c shows the clamping connector 3 in the form of an oblique representation, in which the deformation area 9 is bent upward relative to the wings 7 , 8 and projects from the plane of the wings 7 , 8 .
- the clamping connector 3 In order to connect the ends of the respective conductor bands 4 , 6 and 4 ′, 6 ′ of adjacent conductor rail segments 1 a , 1 b , the clamping connector 3 is initially pushed over a bent end of a conductor band 4 with a wing 7 , as shown in FIG. 2 b .
- wraparound flaps 10 are provided on the inner side of each wing 7 , 8 of the clamping connector 3 . Consequently, the clamping connector 3 can be pushed over the end of a conductor band 4 such that the wraparound flaps 10 encompass the end of the conductor band 4 and produce a clamping connection with the conductor band 4 .
- FIG. 1 b shows the contact point between the two conductor rail segments 1 a and 1 b during this stage of the inventive method.
- the clamping connector 3 is compressed in the deformation area 9 by means of pliers or another deformation tool, as shown in FIG. 1 c .
- the clamping connector 3 contracts in its longitudinal direction and thus presses the ends of the respective conductor bands 4 , 6 and 4 ′, 6 ′ inserted into its wings 7 , 8 against one another. Due to the outwardly tapered ends of the respective conductor bands 4 , 6 and 4 ′, 6 ′, the clamping connector 3 is additionally pushed to the ends of the respective conductor bands 4 , 6 and 4 ′, 6 ′ during the compression of the deformation area 9 .
- the shape of the wings 7 , 8 of the clamping connector 3 is adapted to the shape of the ends of the conductor bands 4 , 6 such that during compression of the deformation area of clamping connector 3 , the faces of the respective conductor bands 4 , 6 and 4 ′, 6 ′ are simultaneously pressed against one another in the region of the bends in order to form a contact surface 5 .
- FIG. 1 d shows the contact point between the conductor rail segments 1 a , 1 b with the respective conductor bands 4 , 6 and 4 ′, 6 ′ that are pressed against one another by means of the clamping connector 3 .
- FIG. 2 c shows this contact point with the contact surface 5 in the form of a side view from inside.
- the inventive connection between the conductor bands of adjacent conductor rail segments ensures a connection between the conductor bands that has an adequate electrical conductivity and is produced with defined clamping and contact forces.
- the handling of the clamping connector is very simple, and only a few components are required to produce the connection, namely only the clamping connector 3 .
- the installation can also be carried out manually with the aid of a clamping tool.
- the transport of yet uninstalled conductor rail segments 1 a , 1 b also does not create any problems because the ends of the conductor bands do not protrude perpendicularly outward from the housing as in the state of the art, but rather are bent by 180°.
- the clamping connector also allows a simple disassembly of the conductor rail segments because the compressed clamping connector can also be easily expanded again and pulled off the bent ends of the conductor bands.
Abstract
Description
- The invention pertains to a conductor rail, particularly an enclosed conductor rail, and to a method for connecting conductor bands of adjacent segments of a conductor rail, as well as to the utilization of a clamping connector for connecting conductor bands of adjacent segments of a conductor rail.
- A conductor rail is known from the company brochure “Kastenschleifleitungen Program 0842” of the firm Wampfler AG. The conductor rail segments of the enclosed conductor rail described in this brochure can be connected to one another in different ways. One option for producing this connection consists of bending the ends of the conductor bands extending in the housing of the enclosed conductor rail outward by 90°. The outwardly bent ends of the conductor bands of adjacent conductor rail segments can then be electrically and mechanically connected to one another by means of an angular clamping connector that can be clamped or screwed over the joined ends of the conductor bands of adjacent conductor rail segments that protrude transversely from the housing.
- However, it has been determined that this connection between conductor rail segments is complicated to produce during the installation. In addition, transport of the yet uninstalled conductor rail segments is difficult due to the outwardly protruding ends of the conductor bands, the protruding conductor band ends may be bent or broken off during transport.
- Based on these circumstances, the invention aims to improve a conductor rail of the initially cited type such that a simple connection between conductor rail segments can be manually produced with the fewest components possible, and such that a high system reliability is preserved. In addition, the invention aims to simplify the transport of yet uninstalled conductor rail segments. The contact point at which the conductor bands of adjacent conductor rail segments are connected to one another should be largely vibration-proof and have an adequate electric conductivity.
- These objectives are attained with a conductor rail and with a method for connecting conductor bands of adjacent segments of a conductor rail as set forth in the independent claims, as well as with the utilization of a clamping connector for connecting conductor bands of adjacent segments of a conductor rail. Preferred embodiments of the inventive conductor rail are disclosed in the dependent claims.
- One embodiment of the invention is described in greater detail below with reference to the accompanying drawings. In these drawings:
-
FIG. 1 a shows an oblique representation of the connecting point between two conductor rail segments with conductor band ends that are bent outward by 180°; -
FIG. 1 b shows the region of the contact point between the conductor rail segments according toFIG. 1 a during an intermediate step of the inventive method; -
FIG. 1 c shows the contact point between the conductor rail segments according toFIG. 1 a during another intermediate step of the inventive method; -
FIG. 1 d shows an oblique representation of the contact point between conductor rail segments that are electrically and mechanically connected in accordance with the invention by means of clamping connectors; -
FIG. 2 a shows a front view of a clamping connector for connecting conductor rail segments of a conductor rail (top), and a side view of a contact point between two adjacent conductor rail segments with conductor bands that are bent outward by 180° (bottom); -
FIG. 2 b shows a schematic representation of the connection between the conductor rail segments according toFIG. 2 a during an intermediate step of the inventive method, and -
FIG. 2 c shows a schematic representation of the contact point between the conductor rail segments according toFIG. 2 a (bottom) that are connected to one another by means of the clamping connector according toFIG. 2 a (top). - The enclosed conductor rail illustrated in the form of an oblique representation in
FIG. 1 consists of severalconductor rail segments shaped housing 2 of an electrically insulating material, usually plastic, and one ormore conductor bands FIG. 1 comprises two conductor bands, wherein the conductor bands extending in theconductor rail segment 1 a are identified by thereference numerals conductor rail segment 1 b are identified by thereference numerals conductor rail segments FIG. 1 , the ends of theconductor bands housing 2 by 180°. The outwardly bent ends of theconductor bands conductor bands upper conductor bands lower conductor bands 4′, 6′ of the twoconductor rail segments contact surface 5, at which the respectively correspondingconductor bands conductor rail segment 1 a to the adjacentconductor rail segment 1 b. -
FIG. 2 a shows a front view of aclamping connector 3 that is made of an electrically conductive material (FIG. 2 a, top). The illustration below this front view shows the contact point between theconductor bands conductor rail segments FIG. 2 a, bottom). Theclamping connector 3 shown in the top illustration ofFIG. 2 a consists of twowings deformation area 9 arranged between the two wings. Thedeformation area 9 may consist of a material that is easier to deform or be of the same material as the twowings wings deformation area 9 may also consist of the same material and have the same thickness. Thedeformation area 9 is delimited from thewings FIG. 1 c shows theclamping connector 3 in the form of an oblique representation, in which thedeformation area 9 is bent upward relative to thewings wings - In order to connect the ends of the
respective conductor bands conductor rail segments clamping connector 3 is initially pushed over a bent end of aconductor band 4 with awing 7, as shown inFIG. 2 b. In order to enable thewing 7 of theclamping connector 3 to encompass the end of theconductor band 4,wraparound flaps 10 are provided on the inner side of eachwing clamping connector 3. Consequently, theclamping connector 3 can be pushed over the end of aconductor band 4 such that thewraparound flaps 10 encompass the end of theconductor band 4 and produce a clamping connection with theconductor band 4. Subsequently, theclamping connector 3 is pulled slightly toward the adjacentconductor rail segment 1 b in the longitudinal direction and thesecond wing 8 that also features awraparound flap 10 is pushed over the outwardly bent end of thecorresponding conductor band 6. In particular, thedeformation area 9 of theclamping connector 3 returns to its original shape due to its flexibility and elastic properties.FIG. 1 b shows the contact point between the twoconductor rail segments corresponding conductor bands clamping connector 3 is compressed in thedeformation area 9 by means of pliers or another deformation tool, as shown inFIG. 1 c. Due to the compression of theclamping connector 3, theclamping connector 3 contracts in its longitudinal direction and thus presses the ends of therespective conductor bands wings respective conductor bands clamping connector 3 is additionally pushed to the ends of therespective conductor bands deformation area 9. The shape of thewings clamping connector 3 is adapted to the shape of the ends of theconductor bands clamping connector 3, the faces of therespective conductor bands contact surface 5.FIG. 1 d shows the contact point between theconductor rail segments respective conductor bands clamping connector 3.FIG. 2 c shows this contact point with thecontact surface 5 in the form of a side view from inside. - The inventive connection between the conductor bands of adjacent conductor rail segments ensures a connection between the conductor bands that has an adequate electrical conductivity and is produced with defined clamping and contact forces. The handling of the clamping connector is very simple, and only a few components are required to produce the connection, namely only the
clamping connector 3. The installation can also be carried out manually with the aid of a clamping tool. Furthermore, the transport of yet uninstalledconductor rail segments
Claims (22)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007039143.0 | 2007-08-18 | ||
DE102007039143A DE102007039143B4 (en) | 2007-08-18 | 2007-08-18 | Clamping connector for a conductor rail |
DE102007039143 | 2007-08-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090047810A1 true US20090047810A1 (en) | 2009-02-19 |
US7785120B2 US7785120B2 (en) | 2010-08-31 |
Family
ID=39884374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/192,641 Expired - Fee Related US7785120B2 (en) | 2007-08-18 | 2008-08-15 | Clamping connector for a conductor rail |
Country Status (3)
Country | Link |
---|---|
US (1) | US7785120B2 (en) |
EP (1) | EP2028731B1 (en) |
DE (1) | DE102007039143B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10320164B2 (en) | 2016-05-05 | 2019-06-11 | Rxl, Inc. | Grounding clip |
CN113381256A (en) * | 2021-05-20 | 2021-09-10 | 新兴铸管股份有限公司 | Crown block main power supply slide wire connector device capable of preventing expansion with heat and contraction with cold |
US11909154B1 (en) | 2021-03-08 | 2024-02-20 | Chatsworth Products, Inc. | Endcap for establishing electrical bonding connection |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL417268A1 (en) | 2016-05-19 | 2017-11-20 | Unilift Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa | Clamp joint of a busduct |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4121879A (en) * | 1977-05-18 | 1978-10-24 | Bjorn Kokvik | Connector arrangement for conductor rails |
US5332866A (en) * | 1991-12-20 | 1994-07-26 | Sumitomo Wiring Systems, Ltd. | Wire harness protector assembly |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420864A1 (en) * | 1978-03-22 | 1979-10-19 | Fels Sa Const Elect | Power supply conduit for movable equipment - has plastics covered conductor strips with clamping connectors behind sliding covers (NL 25.9.79) |
DE29518253U1 (en) * | 1995-11-17 | 1996-01-11 | Briloner Leuchten Gmbh | Low-voltage track system for luminaires |
EP0771999A3 (en) * | 1995-11-02 | 1998-04-29 | Briloner Leuchten GmbH | Low-voltage rail system for lightning installations |
DE29520491U1 (en) * | 1995-12-29 | 1996-02-15 | Wampfler Gmbh | Box conductor line |
DE19807792C2 (en) * | 1998-02-19 | 2000-01-27 | Mannesmann Ag | Connector for two successive conductor line sections |
NL1018319C2 (en) * | 2001-06-18 | 2002-12-19 | Akapp Electro Ind B V | Busbar system. |
-
2007
- 2007-08-18 DE DE102007039143A patent/DE102007039143B4/en not_active Expired - Fee Related
-
2008
- 2008-07-16 EP EP08160530A patent/EP2028731B1/en not_active Not-in-force
- 2008-08-15 US US12/192,641 patent/US7785120B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4121879A (en) * | 1977-05-18 | 1978-10-24 | Bjorn Kokvik | Connector arrangement for conductor rails |
US5332866A (en) * | 1991-12-20 | 1994-07-26 | Sumitomo Wiring Systems, Ltd. | Wire harness protector assembly |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10320164B2 (en) | 2016-05-05 | 2019-06-11 | Rxl, Inc. | Grounding clip |
US11909154B1 (en) | 2021-03-08 | 2024-02-20 | Chatsworth Products, Inc. | Endcap for establishing electrical bonding connection |
CN113381256A (en) * | 2021-05-20 | 2021-09-10 | 新兴铸管股份有限公司 | Crown block main power supply slide wire connector device capable of preventing expansion with heat and contraction with cold |
Also Published As
Publication number | Publication date |
---|---|
EP2028731B1 (en) | 2012-11-21 |
DE102007039143B4 (en) | 2010-06-17 |
EP2028731A3 (en) | 2010-07-28 |
DE102007039143A1 (en) | 2009-02-19 |
EP2028731A2 (en) | 2009-02-25 |
US7785120B2 (en) | 2010-08-31 |
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